?,thefollowingclassificationsystemisused,withthecategorieslistedindescendingorder:phylum,class,order,family,genus,%(classInsecta),inturn,arethemostnumerousofthearthropods,accountingforabout70%,whichmakeupabout10%?,allarthropods,includinginsects,havesegmentedbodies,segmentedappendages(legs),?,grainandcerealproductinsects,whichhaveadaptedtolivingintheenvironmentprovidedbygrainsandgrainproducts,areusuallyfoundintheordersColeoptera(weevils,beetles,andborers)orLepidoptera(mothsandbutterflies).Parasitesandpredatorsofthegrain—infestinginsectsareincludedintheordersHemiptera,Hymenoptera,,insectsarefurthersubdividedintofamilies,familiesintogenera,?ameofthensect,
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